Improvement in steam-boilers



UNITED STATES PATENT OEEICE` GREEN B. MGDONALD, OF LOUISVILLE, KENTUCKY.

IMPROVEMENT IN STEAM-BOILERS.

Specification forming part of Letters Patent No. 37,455, dated January 20, 1863.

To all whom, it muy concern:

` Be it known that I, GREEN B. MODONALD, of Louisville, in the county of Jefferson and State of Kentucky, have invented a new and Improved Means of Removing the Deposit from Steam-Boilers and I do hereby declare that the following is a full, clear, and eXact description of the same, reference being had to the accompanying drawings, forming a part of this specication, in which- Figure l is a central longitudinal vertical section of a boiler with my invention applied. Fig. 2 is a transverse vertical section 0f the same. v

Similar letters of reference indicate corresponding parts in the several figures.

This invention consists in the employment, conjointly with a mud well or receptacle below the fire-surface of the boiler, of a brush worked by a rod passing through a stufiing-box, for the purpose of sweeping the depositfrom over the fire into the well, and thereby preventing the burning of the boiler.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

A is the body of the boiler, having the furnace arranged below its bottom a, and having the mud-well B arranged in rear of the furnace.

The invention is applicable in connection with a plain cylinder or a returnilue boiler or with any kind of boiler which has the fire under it, and which admits of the arrangement of the mudwell.

O is the brush, made ot' metal to ronform to the transverse sectional shape ot' the bottom of the body A of the boiler, as shown in Fig. 2, and D is the rod to which it is attached,

working through the stuffing-box b in the front ot' the boiler and furnished with a handle, e, at its outer end to enable it to be laid hold of for the purpose of working the brush back and forth, and thereby sweeping the deposit froin the bottom a into the mud-well B, whence it can be drawn oft through a suitable cock.

The rod D may be made with two or more joints, to be taken apart, if desirable.

What I claim as my invention, and desire to secure by Letters Patent, is-

The employment, conjointly with the mudwell B of the boiler, of a brush, C', having an attached rod working through a stuffing-box in one end of the boiler, and operating substantially as herein specified, for the purpose set forth.

GREEN B. MCDONALD.

Witnesses:

A. W. WALLER, JABEZ G. KIRKER. 

